Trade: McLaurin & DM for Leonard Fournette?

Half ppr. I lost Saquon so i’m looking to buy low on Fournette. I know the other team wants McLaurin, but he declined my straight-up offer of McLaurin for Fournette. Should i offer David Montgomery on top?

My RBs: Carson, Aaron Jones, DM, Saquon & Mattison
My WRs: Thielen, Lockett, Boyd, DJax, McLaurin